Two babies are born in a moving train, one in the compartment adjacent to the engine and other in the compartment adjacent to the guard. According to the train frame , the babies are born at the same instant of time. Who is elder according to the ground frame?

Explanation

The clocks of a moving frame are out of synchronization . The clock at the rear end leads the one at front by ` Lv / c^(2) ` Where `L_0` is the rest separation between the clocks, and c is speed of the moving frame. Thus , the baby adjacent to the huard cell is elder .